wakeley



(No Model.)

' S. J. WAKELEY.

- GAS GOVERNOR. No. 322,083. Patented July 14, 1885.

Mlzzwsw: fnwnlar N. PETERE MD'LRMHW. Wm B. C

JNrrr: TATES GAS-GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 322,083, dated Julylk,1885.

Application filed Fcbruam- Q5, 1885.

To aZZ whoml it may concern:

Beit known that I, SETH J. WAKELEY, of the city and county of New York,in the State of New York, have invented a new and useful Improvement inGas-Governors, of which the following is a specification.

My invention relates to governors for controlling the supply of gas to asystem of pipes and burners, in order to maintain a comparativelyuniform pressure within the pipes leading to the burners however thepressure in the main and service pipes may vary. My governor, likeothers of the same class, has a valve which is controlled by thepressure of gas in a drum or shell having a liquid seal, and which maybe loaded, as desired, to set it for admitting more or less gas to thepipes leading to the burners.

The object of my invention is to provide a governor in which provisionis afforded for the leakage or by-pass of a small quantity of gasindependent of the valve, and whether it be open or closed,whereby thegovernor is made more sensitive to slight variations in pressure, andwhich enables the governor to be regulated for the very lowest pressurewhich can be possible.

My invention is illustrated in the accompanying drawing, whichrepresents a sectional elevation of a governor, and will be hereinafterdescribed, and pointed out in the claim.

A designates the valve shell or casing,which has at opposite endspipe-sockets a,which are in line, and a downwardly-presented valveseat,Z). Below this seat is a valve, B, having a facing, c, of any suitablepacking material which will not be corroded or destroyed by the actionof gas. This valve closes by an upward movement, and when open permitsgas to pass through the seat in the direction indicated by arrows.

The bottom of the valve-easing A is closed by a screw-plug, A,which isof sufficient size to permit of the valve B being introduced upwardthrough the opening when the plug is removed. From the top of the casingA extends upward a short neck or cylindric portion, O,which issurmounted by a large shell or casing, 0, open at the top, and servingto contain water or other liquid seal to prevent gas from escaping.

(No model.)

Screwed or otherwise secured in the neck or socket O, and forming anupward continuation thereof, is a pipe, D, which extends upward nearlyto the top of the shell or casing O; and k D designates a smaller pipearranged concentrically therein and extending from the upper end thereofdown to the valve-shell A. As here shown, the pipe D has cross bars orbridges d in which the tube D is fixed.

The valve B is attached to a stem, B,which extends upward through thepipe D, and is guided in the said pipe. The stem from the lower endupward to a point within the pipe D is tubular or hollow, and at the topof its internal cavity it has side openings, d ,throughwhich gas mayescape from the tubular stem 13 into the pipe D, and thence upward intothe casing C. The stem 13 is here shown as reduced in size above thetubular portion, and it extends upward above the top of the pipe D, andhas secured to its upper end an inverted cupshaped drum or cylinder, E,the lower open end of which is immersed in the liquid in the shell orcasing O, and is thereby sealed to prevent the escape of gas. The upperend of the stem B is screw'threaded, and the drum E is attached theretoby nuts e,which provide for adjusting it relatively to the valvestem.This drum E may be loaded by weights proportionate to the pressure whichit is desired to maintain in the pipes leading to the burners, and whenthis pressure is exceeded the drum and valvestem B will be lifted, andthe valve B closed on or moved toward the seat I), to more or lessprevent the inflow of gas. ltwill be observed that the valve openingdownward provides for admitting to the drum only the back-pressure fromthe pipes leading to the burners, and not the pressure which is in themain supply-pipe leading to the regulator or governor.

The hollow stem B, with its fine holes (1*, provides a by-pass for asmall quantity of gas even when the'valveB is closed. This passage ofgas through the governor independently of the valve enables the governorto be regulated or set for the very lowest pressures, and renders thegovernor very sensitive to comparatively slight variations in pressure.

The portion of the valve-stem B which is below the holes tits and movessnugly within the pipe D; but the stem B, at and above the holes (2*, isreduced in diameter, so that the gas passing through the holes (1* willfind its readiest avenue of escape upward through the pipe D and intothe drum E.

Vhen the burners are all turned off there will be no pressure upon thedrum E, and hence it will be in its lowermost positi0n,with the valvefull open.

To regulate the governor, one burner is lighted, and the valve is set byloading the drum E to any pressure desired. This may be done in thelaboratory by means of a testgage. This being done the governor willproperly control the pressure of gas in the pipes leading to theburnersnvheth er any number of burners from one to the full number forwhich the governor is intended to be used be lighted.

Another advantage of the small bypass independent of the valve is thatit always lets enough through to prevent the burners from being whollyextinguished in case the governor gets out of order and the valvebecomes or is held permanently closed.

What I claim as my invention, and desire to secure by Letters Patent.is-

The c0mbination,with the valve-shell A,having the down\vardly-presentedseat I), of the neck or socket O, shell or casing C, and pipe D,surmounting the shell A, the valve B, and its stem 13, made tubular atthe lower portion and having the side opening (1*, whereby there isformed a by-pass for gas independent of the valve, substantially asherein described.

SETH J. WAKELEY.

\Vitnesses:

FREDK. HAYNES, HENRY MCBRIDE.

